Reagent feeder



July 19, 1932. J, ADAMS 1,867,961"

REAGENT FEEDER Filed May 1, 1951 F1 ECL- FIEIEI INVENTOR. :TAMES AAnA s wgm A TTORNEYS.

Patented July 19, 1932 JAMES ARTHUR ADAMS, OF DEMING, NEW MEXICO REAGENT FEEDER Application filed m 1, 1931. Serial No. 534,397.

This invention relates to improvements in reagent feeders, and has particular reference to an automatic siphon which will feed a predetermined amount of a reagent, irrespective of the height of the liquid within the tank from which the siphon is feeding.

The principal object of this invention is to produce a device of this character which will stop siphoning should the liquid in the tank fall below the inlet of the siphon, but which will commence siphoning again as soon as the liquid within the tank rises sufficiently to cause a hydrostatic head.

A further object is to provide simple means whereby the rate of flow of the siphon may be readily controlled irrespective of the height of the liquid within the tank.

Other objects and advantages will be apparent during the courseof the following description.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical cross section of a tank constructed in accordance with my invention, and having a siphon and supporting mechanism located therein, I

Figure 2 is a side elevation of the floats and siphon holding bracket,

Figure 3 is a view similar to Fig. 2, looking from the opposite side, and showing the siphon in place Figure 4 is a cross-sectional view taken on the line H of Fig. 1, and

Figure 5 is a top plan view of my device on a reduced scale and with the cover removed.

In most industries, it is necessary to deliver a given quantity ofa fluid so as to accomplish a specific purpose, such as the admixture of certain chemicals, reagents or for the delivery of oils, to accomplish certain objects. In these various processes, it is necessary that an accurate amount of fluid be delivered at all times, irrespective of the quantity of the liquid in the tank from which the same is being drawn. It has been found that a si:

0d, particularly where acids are employed.

phon is the most advantageous feeding meth-- However, with siphoning, .the hydrostatic head varies as the liquid within the tank, from which the fluid is being drawn, raises or lowers. Applicant has therefore mounted a siphon upon a float and arranged the siphon holding bracket, so that the bracket may be tipped for thepurpose of raising or lowering the discharge end of the siphon which will increase or decrease the flow thru the siphon. i

In the accompanying drawing wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a tank which may be of any shape, and preferably havi'ng'a double bottom as shown at't and 6. An inlet pipe is shown at? which discharges fluid between the bottoms 4 and 6, and by providing perforations in the bottomfi, or any other opening, this fluidentering the tank may pass upwardly and thru. At 9 I have showna bracket which is secured toone end of the tank 5 and to which is pivoted as at 11 a parallelogram arrangement, which consists Of'a vertical control bar 12, a vertical siphon holder' bracket 13 and parallel arms 14 and 16. Secured to the bracket 13 is a pair of floats 17 An'adjusting screw 18 passes thru the lower end of thecontrol bar 12 so that its end engages the tank 5. A spring 19 resists the action of the screw 18, and the purpose of the same is obvious. A siphon 12 is secured within the bracket 13 and has an upwardly curved inlet end 22'which lies between the floats 17, (see Fig. 8). This siphon hasa discharge end 23 which is so bent as to form a trap 24. In some instances, it is necessary that heat be applied to the fluid being discharged soas tofreduce viscosity or to produce certain chemical reactions not produced by cold chemicals. Therefore, I have shown a plug at 26, which plug connects with'a heating element mounted :within the tank.

The result of this construction is that by introducing fluid thru the pipe 7 into the space between'the double bottoms 4 and 6, which fluid may gradually rise thru the perforated bottom 6, the fluid may be introduced without causing any appreciable eddy currents,or if desired, a fluid may lead across the entire bottom to a point adjacent the heat er, where it will .be given the necessary warming. This however, is only incidental to my invention, which consists in the siphon ar rangement and its operation. The siphon action is first commenced by filling'the tube of the siphon in any convenient manner. We will now assume that the liquid level has been raised in the tank 5 sufficiently to cause the floats 17 to leave their position as shown in Fig. 1, upon the bottom-6; It will be evident that if these floats rise,the intake ofthe siphon will at all times remain a predtermine'd dis tance below the surface of the fluid. Therefore, aconstant hydrostatic head will be preserved. Should it be desired to increase the rate of flow, by manipulating the adjusting screw 18 against the tension of the spring 19, the control bar 12 may be tipped, for instance, toward the left of the drawing,-with a result that. the bracket 13 will tip in the same direction, thus throwing the discharge end 23 of the siphon further below the intake end, with a result that an increase flow of liquid therethru will immediately take place.

o It will thus be seen that I have produced a V siphon which will perform all of the objects and that various changes relative to the maabove set, forth, and one which is easily and accurately adjusted from a remote point.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same terial, siZe,shape-and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims. I I

Having thus described m inventioml claim V 1. In a device of the character described, in

combination with a tank, of a parallelogram supporting arrangement secured to said ill) tank, a siphon carried by said parallelogram arrangement, and means associated therewith whereby said siphon may be adjustably positioned relative to the tank.

2. In a device of the character described,'a bracket secured to said tank, a vertically disposed adjusting bar pivoted to said bracket, a vertically disposed siphon bracket remotely positioned with respect to said. adjusting bar, parallel arms connected to said adjusting bar and said siphon bracket, a siphon carried by said siphon bracket, and adjusting means associated with said bar whereby said bar and saidbracket may be simultaneously moved for the purpose specified.

In testimony whereof I aiiix my signature.

JAMES ARTHUR ADAMS. 

